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Publication numberUS893181 A
Publication typeGrant
Publication dateJul 14, 1908
Filing dateSep 30, 1907
Priority dateSep 30, 1907
Publication numberUS 893181 A, US 893181A, US-A-893181, US893181 A, US893181A
InventorsWalter G Macomber
Original AssigneeWalter G Macomber
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Rotary engine.
US 893181 A
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Description  (OCR text may contain errors)

PATENTED JULY 1 4, 1908.




ne. scrissi.

' io all whom 'it'ma'y concern.'

Be it known that I`,WALTE13. G. MAcoMBER, e citizen of the United States, residin et Johannesburg, 'count1 of Kern, State of eliforniti., hnve lnvente Ae new and useful' Rotsry Engine or Pump, of which the following is e-specicntion. f I This invention relates lto e rotary engine or pump invwhich s. cylinder having a. reciprof5 '1c ceting'piston isegnployed, and the object of the invention is to employ a. lurslity of cylinders with their pistons en cause s rotary bodily movemen'toiv the c lind'ersin a.` plane l et righ.' 'singles tiithe. ection-of piston ltreve pistons is applied 'to s rotating element whi rotetes in e lanest venengle to the rotation of the cylin ers, and e further object is to equalize theprefssure ofnnefpiston egeinst` seid element by sn 'o osing rassure roduced by snotlzlerV pistdet the-I bpposite Islide p of seid clement, thereby avoiding end thrust end. vibration. .In this engine no ily-wheel is required, es the cylinders partake of bodily vze rotation end their' weight is sufficient. to

ceuse'them to perform the service of a; flywheel. Esch piston, ,in 'this embodiment, is propelled by t e motive huid, forexam le, steam or sir, inboth directions. In ot er wor-ie, eschpiston is double acting, and a.

. 'further veryl'mportsnt object ci the invenf .tion is to dispense with movable valves :md their necessary attendent mechanism for opereting them, such es eccentrics, cams, end

135 the like', lend to `e'ect the admissionv and efxheust of the cylinders by the bodily rotating movement of the cylinders. A

A iur-ther obj'ectis to provide a, manually y controlled valve for; reversing the sequence of 40 edinission. and exhustend thus provide for opereting the engine `in either direction.

From the foregoing it'will be seen that the .engine`= may be of exceedingly sim le con- .,struction and .that the only .-moveb epsrts thereof smiths-cylinders,'their pistons, the engulsrlydis osed rotating element and the "connections, etween said .elementsnd'the pistons.-

. I ..xs' v". v, 1

' Other f objects and" `advantages will vbe brought putin the following description.

The accompanying drawings illustrate the invention, and referringthereto :.Figure 1. is s plan view ofthe engine constructed with four cylinders. Fig. -2 1s a. horizontal section ,5s through the engine online :v2- 3.

p j Specification oi LettersPetent. Application led September 30, 1907. Serial N o. 395,396..

The .powerfrom the reciprocating- Patented July 1&5 1908.

i Fig. 3 is o. ver-tical section through the engine on 'lihe aia-:v3 Fig. 1. Fig. 4 is e section on line :cf-a of Fig. 2. y Fig; 5 is a section on line c25-exs of Fig. 2. Fig. 6 is en end eleva tion of the Eheed end ,of the en' ine. Fig. 7 is e. cross sectiorrthrou h the cy inder shaft on line aol-x7 Fig. 3. gig. 8 is a. cross section tFhrovghgthe reversing valve on line s6-408 he engine is provided with a. base 1 hsv ing et one end e standard 2 and st the other end e standard `3.` The standard 2- is Vfornled with esupport 4 end journal bearing 5 axisll in line with each other and the `stendsr 3 'is provided with jonrnelberings6exially'in lme witheach other, but et en angle to the axis of ybearings 4 and 5,' es clearly hemisphericel concave recess 8in its heed end, which end is journeled in the bearing 5 and terminates therein.' The other end of the cylinder shaft 7 is preferably tapererhss shown, and has a fork 9 through which passes 'e cross rod 10, the cross rcd'10 havin r 'trunnionsA 11 whichpivot the .cross rod tot e fork' 9 thereby forming e. universel joint between the cylinder shaft and 'cross rod; The cross rod 10 extends dismetricslly through a hol- -low hemisphericsl bowlghereincfter termed the inner bowl 12, and pins 13 hold the cross rod .10 from slipping endwise in the inner bowl. The inner bowl 12 is nested within-s similarly shspedouter bowl 14. The outer -bow1 14 is carried on the end of e sleeve 15 journaled in bearings 6 and the inner bowl 12 1s carried on a shaft 16 which is journsled 'in sleeve 15, the shaft 16 havin e collar 17 which rbears against the endo sleeve 15 to .prevent relative lon 'tudinel movement between the sleeve en shaft.

Morin-ted on the cylinder shaft 7 y and .preti crsbly cast integrally `therewith are four cyl- ,'inders 18, 19, 2() and 21, esch cylinder having la removable head 22. Mounted to reciproeste within therespective cylinders 18, 19, 20and 21 'are pistons 18, 19, 20 and 21s,

which Vpistons are provided respectively with pistonrods 18h, 19h, 20b and 211?, eech piston lrod passing through aglend 23 in the end of, 'its cylinder.y Thefonr -piston. rode` ell-have forked ends 24 which sllde on weysr pro# `jee-ting from the cylinders, end in. eeich forked."

-end 24 is e. -sleeve'25 'havin trunnions 26 which are journsled in the for .ed end so that Y ii A with piston rods 18b and 20".

Y is

I21 withs i. ar

-the sleeve 25 can swing therein. The ends of cross rod are mounted in sleeves 25 of the piston rods 19'D `and 21". Projecting from the outer bowl 14, from diametricallv opposite points, are two trunnions 27, which trunnions project into sleeves connected Y Thus,ipistons 18a and 20'- are connected with the outer bowl 14 and the pistons 19 and 21 u are connected with theI inner bowl 12.

The cross rod 10 which is carried by the inner bowl 12 is free-trom enga rement with the outer bowl 14 and lies at rig it angles to the trunnions 27 of the outer bowl, but this relative angular position is not 'maintained absolutely, 4for as will b'e hereinafter pointed out, there is a slight relative movement bctween bowls 12 and 14 which causs a certain amount of change in the relative angular po sitions of cross rod k1.0 and trunnions 27. However, at' all times the cross rod 10 may be said to be substantially at right angles with the trunnions 27, as the relative movement ,with respect thereto is slight. The cylinder' '18 is provided at each end, respectively, with port 18 and 18d; cylinder 19 is rovided with similar ports19 and 19"; cy inder 2U withsimilar orts 20? and'20fi; and cylinder vrts 21c and 21d. A passage 28formed 11i-cylinder shaft 7 connect" `ports 18" and port 20 d, and a rpassage 29 cone. nects ort'2d with port 18 as-shown by\ dotted) do. not lcoinnmnicatc with each other. A passagev fconnects port 19 vwith port 21 d, and a passage 31 connects port 21c with port 19d as shown by dotted ines, Fig. 2, and these" latter pass es doy not communicate with-each other. alille cylinder shaft 7 at the .head end is provided with four longitudinal passages 1186,19", 20a and 21" which respectively communicate with ports 18, 19, 20c

which the reversing .t

and 21 c, and the said passages all open atthc concave end 8 of the shaft 7. A reversing valve 32 is arranged at the concave lend of shaft 7 and has a rounded nose which fits the concave Aface 8. VThe other end of the ref verein valve is formed with a socket providing a c amber 33. Projecting part way into the chamber 33 is a stationary shaft 34 upon valve 32 is revolubly mounted. The sha 34 is hollow to form an inlet for the admission of the motive fluid to the chamber 33, and an annular gland 35 is arranged between the reversing valve 32 and shaft 34A to prevent leakage. The reversing valve 32 is provided with passages 36 and 37, bothv passages-o ening at the round end of the reversing va ve and the passage communicating directly with chamber 33, while the passage 37 does not communicate with passage 33 'but is open to the atmosphere.

A reversing lever 38 is provided on the reversing valve 32 for operating the valve, and stops 39 limit the movement of the reversing lines in'Fig. 3; thel said two passages esami.

'valve to an arc of half a circle. When thc 'to chamber 33 and while m chamber 33 cxerts end pressure against. the reversing valve,

piston 18 is moved to the right und piston 20 moves to tho lci't. .During this movement ol the pistons thc motiviv Huid on the right vhand sido of pistou 18 passes out through port 18d und through passage 29 to passage 20e where it mingles with motive iiuid at the left of piston 20, and the combined motive fluid passes along passage 2() into passage 37 of the reversing valve and exhausts into theI atmosphere. The combined pushin f effect of piston rod 18 against the associate trunnion of luitcr howl 14 and the pulling effect of piston rodv 20" upon its associated trunnion of the outer bowl 14 imparts rotation to the outer bowl on account of the'angular thrust and pull of the said two piston rods on, the bowl which causes the outer bowl to rotate, and as the bowl is thus caused to rotate, it in turn imparts through piston rods 18b and 20b rotation to the cylinders, and as all of the cylinders are mounted as one piece they are all caused to revolve together, and for that reason at lthis trfif.- tl. inner bowl 12 is also given rotation thromh the' medium of the other air of piston rods connected therewith. Wiien the piston 18- arrives at port 18d and piston 2Oa arrives at port 20 c, the cylinder shaft 7 has been turned one quarter of arevolution, which brings passage'21e into register with inlet passage 36 and brings inlet passage 19 into register with exhaust passage 37, whereupon the piston in cylinders 21 and |19 are moved in o po- 'tending to hold its round nose iirmlyseated site directions by thelintroduction an exhaust of motive fiuidLthereto in a manner similar to that dcscrib` d in connection with cylinders 1.8 and 20, and during '-his move ment of pistons 19b and 2lb a combined push, and pull is exerted through the cross rod 1() upon the inner bowl 12, which in turn transfers rotation to the cylinders 'and to the shaft 16 and sleeve 15 through the second quarter oi' revolution. Upon the completion of the second quarter or'evolutio'n the passa ye 20 is in register' with inlet passage 36 an( passage 18e is m register with exhaust passage 37, and piston 20'?. is moved to the right and pistou 18"l moved tothe left, a ain acting upon theouter bowl, and throug i the parte connected therewith imparting rotation as before to the cylinders yand shaft-16 and quarter o-.the of cylinders' sleeve 15, and during the last revolution pistons 19 and 21*l 19 and 20 are acted on in the same manner. It will thus be seen that the four ports 18, 19e, 20e and 21 e are successively brouglm'lv to communication with inlet. passage 36 an in sequence are brou ht into register with outlet passage 37. T us, the cylinder shaft l7 in its revolution acts as a valve to permitiintake and exhaust according to the position 'of these four passages.v ating the lever 38, the reversing valve 32 ma be turned through half a circle which wil bring the exhaust passage 37 at the top and intake passage 36 at the bottom, and from Fig. 3 it will be seen that exhaust passage 37 is then in communication 'with passage 18", while intake passage 36 is in communication with passage whereupon motive fluid will be introduced throu h passpge in to assa e 20e and throug port U at the le t of cy inder 20, while fiuidwill exhaust from the left side of cylinder 18 through passage 18e to exhaust passage 37,- luid being admitted to the right of cylinder 18 through passage- 29 which communicates with passage 20e.

. This will result inf-imparting reverse movement to the motor.

Acareful consideration ofthe principles of construction "will show that the ev of each piston rod has a path of travel rough a circle, viewed in a direction along the stroke of the piston rod, but as the inner and outer bowls are also circular and rotate at an an le the points of Contact of the forked'ends of t e piston rods will vary on the .trunnions as the trunnions move in' anellipse when viewed alon the line of piston travel. On account of t is the sliding connection between the trunnions .and iston rod endsk is rovided. From this it wi be seen that a slig t differential movement oecursbetween the two bowls, first one bowl slightly leading and then ,the other leading, accordin to the changing radius from centers of bow s to the contacte ing points on the trunnions,and it is thus necessary to provide for a certain amount of relative movement between the two bowls'12 and 14, which relative movement is provided as was before pointed out in the s eciiication. Power can be taken oli' either rom the sleeve 15 or shaft?. i

ObViQuslY @he machine may be driven to act as a pump in which the circuit of fluid will be the same as whenthe machine operates Y asyran en 'ne More or less cylinders-maybe .entplloye as will be evident.

hat I claim is:-..

1. A rotary machine comprising a plu-v rality of c linders mounted to rotate bodily" ltransverse y-to their bores, reciprocating pistons in the cylinders, adevice mounted to rotate in a plane angular to that of the cylinderl rotation, two pistons being connected to said saaiif 'device at .points between saidypoints connection.

'bod y transverse ing pistons in thee'ylinders, a device mounted n lar to that of the cyl-fir.

It is obvious that by oper? i one set of .tons in the cylinders, l

rotate in a plane angular to that ofthe cylin-v e; der rotation and consisting of 'two members .the othermember.

forked end 'of its associatedppiston rod.l

trunnions on the outer bow not danietric'ally opposite with means 'providing relative movement A rotary 4machinecomprising a pluralit ofsets of clylinders mounted to rotate yt their bores, reciprocatto rotate'in a plane a inder rotation, the cy inders being mounted apart and their pistonsbeing connected tosaid device at points substantially 90 apart'with means providing relative 'movement between the points of connection of l pistons and tlieother set of pis-1 tons.A V l 3. rota mac e 'oA ris' av urality of'cylilnlers mountdnloproialge bodily transverse y to their bores, reciprocating a devicemounte lto capable of relative movement,tl1`e piston ofi one cylinder being connected toons of'said members," and another piston Vbeing connect ed to the other member.' f i f4. A rotary machine comprising a plu.7 ralit of sets of cylinders'Jmounted to rotate bod' y `transversely 'to their" bores, .reciprocating istons 'in the cylinders, a device mounted to rotate in a plane angularto that of the cylinder rotation and consisting of two4 members capable of. relative movementfthe pistons of one set of cylinders being connected to diametrically opposite points of one of said members, and the other pistons being g connected at diametrically opposite points o 5. A rotary machine comprising.

. .a slsf* rality of c linders mounted to rotate bodily A' 'MNE transverse -y of their bores, reciprocatirwpiay tons in the cylinders, a air of nested liow'ls4 mounted to rotate angu arly to the 'cylinder rotation, a piston connected tenne 'bowigr'-, and another piston'eonnectcd tothe other'sf bowl, said bowlsbeing capable of relative"lt movement. l

6. A rotary machine comprising a .plurality of c linders mounted to rotate bodily'v transversely to their bores, reciprocatin pis-- tons inthe c linders, a pair of nested owls capable of re ative movement and mounted to rotate angularly to the cylinder rotation, trunnions on the outer bow a cross rod on the inner bowl formino trunnions, piston f 120, sleeves `journaled on said trunnions, vand a rods on the pistons and iaving forked ende'.

trunnionson each'sleeve journaled in the .7. A rotary machine comprising a plurality. of cylinders mounted to rotate bodily 12e transverse y to 'their bores, reciprocating pis 'tons in the cylinders, a pair of nested bowls capable ol re ative movement and mounted to rotateangularly to the cylinder rotation,

, iis

across reden,- it

`the inner bowl formingl trunnions, 'pis-ton rods on the pistons and aving'oiked ends, sleeves jouijnaled on 'said trunnionls, trunnions on each sleeve journaled in the forked end ofV its associated istoii rod, a shaft supportingthe inner' bow a sleeve'loose on said shaftA and-snpporting the outer bowl, and

' journal bearings in which the .sleeve and shaft are mounted.

8. A rota machine com rising a cylinder shaft, cylin ers thereon, t e shaft having passages near its end, each cylinder having a port at each end, the respective ports at one `end Abeing connectedJ with the res ective passages, the ports at the other en being y connected'by offset passages with the first lshaft, cyln ers .thereon,thefa`siiaft named assages vwhereby thetwo ports of eachcy dei" are in communicationv with p j diametrically opposite first passages, a device ,2c

rotating angular y to the cylinders, said pistons being connected' to said device With means providing relative movement between the device and certain pistons, and mea-ns allowingadinission and exhaust to the `first named/ passages in seq'iienceas-,the cylinder' j rshaftrevolves. Y

9. trota machine comp l connected by'oflset passages with the iirst named plassages whereby theA two ports ci each cy nder are in communication with diametrically opposite rstA passages, a device rotatingangularly to the cylinders, said pistons being connected to said device, a ref versiiig valve `fitting against the end of the 40, i

cylinderv shaft and aving a chamber, said valve having an inlet passage extending from the chamberto tlieendof the cylinder shaft,

and having 'an ,exhaust passage4 opening through' the side and extending to the end of the cylinder shaft. I

- 10, A rotary inachine com rising a cylinder-shaft, cylinders thereon, t e shaft having passages near its end, each cylinder having a port at each end, theres ective ports' at one end being connected Wit i the res 'eotive passages, the ports of the other en being connected by oii'set passages with the .iirst named passages 'whereby the two ports of `each cylinder are' in communication with diametrically opposite first passages, a device rotating angularly t'o the cylinders, said pistons' being connected to said device, a re`- versing valve fitting against the end of the cylinder shaft and having a chamberhseid valve having an inlet passage extending from the chamber to the end of tno cylinder shaft, and'having an exhaust passage open- -ing'lhrough the side and extending to the endof the 'cylinder shaft, a hollowr stationary shaft extending into said chamber and a reversi U valve havin@r con r lend being connected with the 'each cylinder arel in conimiinicstioi llli respective passages, the poi-ts oi' 1li@ eine. end being connected by oilset passages wir.' li the first named whereby the into ,1, ports of each cylinder are in communicaiion with diavinetrically opposite first p: ics, :i device rotating singularly to the cyl nlm-s, said pistons being connected to said device, ii. reversing valve iittiiig against the ciad of lio im cylinder shaft and having clianilif'i, it?, valve having an inlet passage extending from the chamber to the end el' the c ,'iiiif.lcr shaft, and having an exhaust passage onenM ing through the side and extendii y of the cylinder shaft, the end ci" Ui shaft having s concave icc inthe conca-vc lace oi the cyliiii. ,12. A rotary machine compr' dei* shaft, cylinders thereon, the passa-'fes nea-r its end, each ,:ylini n port at each'end, the rospo i ports 'rpc-y passages, the ports oi` the other 1l. l connected by ollfset p,- ages with the i nainedpiissages where. the iwc por diaineti'ically opposite iii-st pss# Y vice rotating angiilarly to the ind pistons being connected tosaiil dem vers-ing valve fitting against the ou cylinder shaft aiidliavinf :i clisinlici, visive having an inlet passage extending f; the chamber tothe end oi 'the cylinder sli: anf :having an vexhaust p. ago opening through the side and extendingto the @iid of the cylinder shalt, e hand levei' on the versing valve for operating it and e sich limiting the `throw of the rcveisiin; veli if, 13; A rotary machine compri. :1., ,d Qin-l der shaft, a. plurality of cylinders aiiaiiyu longitudinally on said shaft, reci, ro .,h istons in the cylinders, ii. pair of nested bowls capable of relative nicveineii and Us mounted to rotate angularly to the cyiindci' shaft, trunnions on 'the'oiitcil howl, a cil rod on the inner bowl, a universal joint bctiveen said cross rod and the a cent end of the cylinder shaft, and piston rods oi; the 13;@ pistons connected to the tiiiiiiiions ci the outer bowl, Aand other' piston rods? connect ed.

` to the ends of the cross rod.

14; A rotary'niachine comprising a plurality of cylinders mounted to roi'ntc bodily 33,', transversely to their hores, reciprocating pistons in the cylinders, a pair of n=sted bowls capable of relative movement and mounted to rotate inL larly to the cylinder rotation., ti'iinnioiis on the outer bowl, a cross ig; 0

` rod on' the inner bowl'forrnin trunnions, isl In testimony whereof, I hanrey hereunto set ton rods on the pistons en having for red yhand atLos Angeles, California, this 24th ends, sleeves journaled on said trunnions,v 'day of September 1907. 'trunnions on each sleeve 'ournaled in the Y lWALTER G. MACOMBER. 5 forked end of its associate piston rod, and In presence'ofguides projecting from the cylinders on GEoIuffE` T. HACKLEY,

which said fork ends travel.


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Cooperative ClassificationF01B3/104